Filtering and centrifugal separation integrated device
The design of a double-layer filter and a locking module solves the problems of easy clogging of the filter and easy leakage of the connection, achieving efficient filtration and centrifugal separation and reliable centrifugal separation effect.
Patent Information
- Application Number
- CN202423289168.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2034-12-30
AI Technical Summary
In the existing centrifuge tube filtration and centrifugation process, the filter screen is prone to clogging and the connection structure is prone to leakage, resulting in poor reliability of filtration and centrifugation.
Design an integrated filtration and centrifugal separation device, which adopts a double-layer filter structure and a locking module. After preliminary filtration through the first filter, it is then filtered a second time through the second filter. During centrifugation, centrifugal force is used to engage the limiting teeth to prevent the threaded connection from loosening.
It achieves efficient filtration and separation of samples, avoids filter clogging, improves the reliability and sealing of centrifugation, and prevents leakage.
Smart Images
Figure CN223846433U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to centrifugal separation technical field especially relates to a filter centrifugal separation integrated device. BACKGROUND
[0002] The centrifuge tube is a kind of common laboratory tool for experimental sample processing, is widely used in biology, chemistry, medicine and other fields.The main function of centrifuge tube is to separate the components in sample by centrifugal force generated by high-speed rotation in centrifuge.The centrifuge tube usually includes a cylindrical tube body and a closed device with body cover to ensure that there is no leakage of sample during high-speed centrifugation.However, the experimental sample processing needing centrifugation often also needs to filter and remove the non-liquid components of sample, and the operation is relatively complex, and simple filter screen structure added in centrifuge tube can easily cause filter screen blockage and cannot play a good filtering and separating effect, and the increased filter screen structure can cause the increase of centrifuge tube connecting structure and gap, and increase the risk of leakage.Therefore, the centrifugal separation technical field needs to propose a filter centrifugal separation integrated device capable of integrating filtering and centrifugal separation functions and having high reliability. SUMMARY
[0003] For the above prior art, the utility model provides a filter centrifugal separation integrated device, and the main technical problem to be solved is how to integrate filtering and centrifugal separation functions and improve the reliability of filtering and centrifugal separation.
[0004] To achieve the above purpose, the technical scheme of the utility model embodiment is as follows:
[0005] A filter centrifugal separation integrated device includes a centrifuge tube body, the centrifuge tube body includes a tube body upper part, a connecting part and a tube body lower part, the tube body upper part and the connecting part are detachably threadedly connected, the connecting part and the tube body lower part are threadedly connected, the upper end of the connecting part is fixedly connected with a first filter screen, the lower end of the connecting part is fixedly connected with a second filter screen, the lower end of the tube body upper part and the lower end of the connecting part are both connected with a first locking module through a spring, the upper end of the connecting part and the upper end of the tube body lower part are both fixedly connected with a second locking module, and the lower end of the first locking module and the upper end of the second locking module are provided with limiting teeth matched with each other.
[0006] Preferably, the first filter screen is provided as a cylindrical shape, the bottom of the first filter screen is fixedly connected with the upper end of the connecting part, and the upper end of the first filter screen is fixedly connected with a cover plate.
[0007] Preferably, the second filter screen is provided as a circular shape, the second filter screen is fixedly connected with the bottom of the connecting part, and the first filter screen and the second filter screen form a secondary filtering cavity.
[0008] Preferably, the cover plate is provided as a circular truncated cone with the upper end raised.
[0009] Preferably, the cover plate is fixedly connected with the upper end of the connecting part by a plurality of support rods, one side of the support rod being attached to the inner side of the first filter screen.
[0010] Preferably, the outer surface of the upper part of the tube body and the lower part of the tube body near one side of the connecting part are provided with anti-skid lines, and the outer surface of the connecting part is also provided with anti-skid lines.
[0011] Preferably, the connecting part and the connecting part of the upper part of the tube body and the lower part of the tube body are provided with sealing rings.
[0012] Preferably, the first locking module comprises a first slot, a centrifugal ring, a guide block and a guide groove, the second locking module comprises a second slot, the first slot is provided at the lower end of the connecting part, the guide groove is provided on the inner wall of the first slot, the upper end of the centrifugal ring is fixedly connected with the upper end of the first slot through the spring, and the centrifugal ring is slidably connected with the guide groove through the guide block.
[0013] Preferably, the limiting teeth comprise first ratchet teeth and second ratchet teeth, the first ratchet teeth are fixedly connected with the centrifugal ring, and the second ratchet teeth are fixedly connected with the bottom of the second slot.
[0014] Preferably, the centrifugal ring is provided with a counterweight wire in the middle part, and the counterweight wire is provided as an annular structure with uniform thickness.
[0015] The beneficial effects of the utility model lie in that: the first filter screen and the second filter screen are arranged, so that the sample is filtered and separated twice, in the process of centrifugal filtration of the sample, the sample is first preliminarily filtered through the first filter screen with a lower mesh number, and then filtered through the second filter screen with a higher mesh number, direct use of a single high-mesh filter screen can be avoided, the filter screen is prevented from being blocked by larger impurities, and the effect of centrifugal filtration is affected.
[0016] Meanwhile, when the first locking module does not perform the centrifugal operation, the first locking module is separated from the second locking module under the action of the spring tension, the upper and lower limiting teeth do not contact, and the device can be normally tightened or loosened through the thread; when the centrifugal operation is performed, the first locking module moves downward under the action of the centrifugal force during the centrifugal operation, so that the upper and lower limiting teeth are engaged, the centrifugal tube body is prevented from being subjected to the action of forces such as vibration and rotation during the centrifugal operation, the threaded connection part is prevented from rotating in the opening direction, leakage is avoided, and the reliability of the device is improved.
[0017] In summary, the application can realize the functions of filtering and centrifugal separation and improve the reliability of filtering and centrifugal separation by setting the first filter screen, the second filter screen, the first locking module and the second locking module. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 FIG. 1 is a structural schematic diagram of a filtering and centrifugal separation integrated device according to an embodiment of the application;
[0019] Figure 2 FIG. 2 is an exploded view of the filtering and centrifugal separation integrated device according to the embodiment of the application;
[0020] Figure 3 FIG. 3 is a sectional view of the filtering and centrifugal separation integrated device according to the embodiment of the application;
[0021] Figure 4 FIG. 4 is an enlarged view of A in FIG. 3;
[0022] Figure 5 FIG. 5 is a structural schematic diagram of a first locking module and a second locking module according to the embodiment of the application;
[0023] BRIEF DESCRIPTION OF DRAWINGS
[0024] 1, centrifugal tube body; 2, upper part of tube body; 3, connecting part; 4, lower part of tube body; 5, first filter screen; 6, second filter screen; 7, spring; 8, first locking module; 9, second locking module; 10, limiting tooth; 11, cover plate; 12, support rod; 13, secondary filtering cavity; 14, anti-skid pattern; 15, sealing ring; 16, first slot; 17, centrifugal ring; 18, guide block; 19, guide groove; 20, second slot; 21, first ratchet; 22, second ratchet; 23, counterweight wire. DETAILED DESCRIPTION
[0025] The technical scheme of the application is further described in detail below in combination with the drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meanings as commonly understood by those skilled in the art to which the application belongs. The terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the application. In the following description, the expression "some embodiments" describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.
[0026] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0027] Example 1
[0028] See attached document Figures 1-5 This application provides an integrated centrifugal filtration and separation device, including a centrifuge tube 1. The centrifuge tube 1 includes an upper part 2, a connecting part 3, and a lower part 4. The upper part 2 and the connecting part 3 are detachably threaded together, and the connecting part 3 is threaded together with the lower part 4. The upper end of the connecting part 3 is fixedly connected to a first filter screen 5, and the lower end of the connecting part 3 is fixedly connected to a second filter screen 6. The lower end of the upper part 2 and the lower end of the connecting part 3 are both connected to a first locking module 8 by a spring 7. The upper end of the connecting part 3 and the upper end of the lower part 4 are both fixedly connected to a second locking module 9. The lower end of the first locking module 8 and the upper end of the second locking module 9 are provided with mutually cooperating limiting teeth 10. This device uses a first filter 5 and a second filter 6 to separate the sample through two filtration processes. During the centrifugation filtration process, the sample is first filtered through the first filter 6 with a lower mesh size, and then filtered through the second filter 6 with a higher mesh size. This avoids the direct use of a single layer of high-mesh filter, which could cause the filter to be clogged by large impurities and affect the filtration and centrifugation effect.
[0029] Meanwhile, when the first locking module 8 of this device is not in centrifugal operation, it is separated from the second locking module 9 by the tension of the spring 7, and the upper and lower limiting teeth 10 do not contact each other. It can be closed or opened by tightening or loosening the threads normally. In this embodiment, the threaded connection structure is loosened when the upper end rotates counterclockwise relative to the lower end, and tightened when the upper end rotates clockwise relative to the lower end. When centrifugal operation is performed, the first locking module 8 moves downward under the centrifugal force of the centrifugal operation, so that the upper and lower limiting teeth 10 mesh, preventing the centrifuge tube 1 from being subjected to vibration and rotation during the centrifugal operation, which would cause the upper end of the threaded connection to rotate counterclockwise relative to the lower end, thus avoiding leakage and improving the reliability of the device.
[0030] In summary, by setting up the first filter screen 5, the second filter screen 6, the first locking module 8, and the second locking module 9, this device can simultaneously achieve the functions of filtration and centrifugal separation, and improve the reliability of filtration and centrifugal separation.
[0031] Specifically, the first filter screen 5 is arranged in a cylindrical shape, the bottom of the first filter screen 5 is fixedly connected with the upper end of the connecting part 3, and the upper end of the first filter screen 5 is fixedly connected with a cover plate 11. By arranging the first filter screen 5 in a cylindrical shape, when centrifugal filtration is performed, the residues filtered are moved towards the lower part of the cylinder under the action of centrifugal force, so that the first filter screen 5 is not covered and blocked by the residues and cannot work normally, and the reliability of the filtration operation is further improved.
[0032] Specifically, the second filter screen 6 is arranged in a circular shape, the second filter screen 6 is fixedly connected with the bottom of the connecting part 3, and the first filter screen 5 and the second filter screen 6 form a secondary filtration cavity 13. The second filter screen 6 is arranged at the bottom, so that the sample passes through the first filter screen 5 into the secondary filtration cavity 13 and is subjected to secondary filtration through the second filter screen 6, thereby improving the filtration effect.
[0033] Specifically, the cover plate 11 is arranged in a circular truncated cone shape with the upper end protruding, so as to reduce the sample remaining on the cover plate 11 during centrifugal filtration and avoid waste of the sample.
[0034] Specifically, the cover plate 11 is fixedly connected with the upper end of the connecting part 3 through a plurality of support rods 12, and one side of the support rod 12 is attached to the inner side of the first filter screen 5. The support rod 12 can support the first filter screen 5, so as to avoid deformation caused by the flow of the sample and the extrusion of the residues.
[0035] Specifically, the outer surfaces of the upper part 2 and the lower part 4 of the tube body near the side of the connecting part 3 are provided with anti-skid lines 14, and the outer surface of the connecting part 3 is also provided with anti-skid lines 14. The anti-skid lines 14 can facilitate the operator to perform the closing or opening operation on the threaded connection of the centrifugal tube body 1.
[0036] Specifically, the connecting part 3 and the connection parts between the connecting part 3 and the upper part 2 and the lower part 4 of the tube body are all provided with sealing rings 15. The sealing rings 15 arranged in the device can further prevent leakage at the connection parts of the centrifugal tube body 1, thereby improving the sealing performance of the device.
[0037] Example 2
[0038] Refer to the accompanying drawings Figures 1-5The difference between the embodiment and the embodiment 1 is that the first locking module 8 comprises a first slot 16, a centrifugal ring 17, a guide block 18 and a guide slot 19, the second locking module 9 comprises a second slot 20, the first slot 16 is arranged at the lower end of the connecting part 3, the guide slot 19 is arranged on the inner wall of the first slot 16, the upper end of the centrifugal ring 17 is fixedly connected with the upper end of the first slot 16 through the spring 7, and the centrifugal ring 17 is slidably connected with the guide block 18 and the guide slot 19. When the centrifugal operation is not performed, the centrifugal ring 17 is pulled into the inner side of the first slot 16 by the spring 7, the upper and lower limiting teeth 10 are not in contact, and the screw can be normally tightened to be closed or loosened to be opened, when the centrifugal operation is performed, the centrifugal ring 17 is moved downward under the action of the centrifugal force in the centrifugal operation, so that the upper and lower limiting teeth 10 are engaged, the centrifugal ring 17 can only slide upward and downward relative to the first slot 16 and cannot rotate under the action of the guide block 18 and the guide slot 19, and the centrifugal ring 17 can limit the relative rotation of different parts of the centrifugal tube body 1 when the upper and lower limiting teeth 10 are engaged, thereby reducing the risk of leakage.
[0039] Specifically, the limiting tooth 10 comprises a first ratchet 21 and a second ratchet 22, the first ratchet 21 is fixedly connected with the centrifugal ring 17, and the second ratchet 22 is fixedly connected with the bottom of the second slot 20. In the embodiment, the first ratchet 21 and the second ratchet 22 cooperate to limit the counterclockwise rotation of the upper end relative to the lower end of the threaded connection, but do not limit the clockwise rotation of the upper end relative to the lower end of the threaded connection, that is, the first ratchet 21 cooperates with the second ratchet 22 to avoid the rotation of different parts of the centrifugal tube body 1 in the loosening opening direction, but can rotate in the tightening closing direction, thereby improving the sealing and closing effect.
[0040] Specifically, the centrifugal ring 17 is provided with a counterweight wire 23 in the middle, and the counterweight wire 23 is arranged in a ring structure with uniform thickness. The counterweight wire 23 makes the centrifugal force acting on the centrifugal ring 17 stronger, thereby improving the engagement effect of the first ratchet 21 and the second ratchet 22.
[0041] The above is only a specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model. The protection scope of the utility model should be subject to the protection scope of the claims.
Claims
1. A filtration centrifugation separation integrated device, characterized by, The application relates to a centrifugal tube body (1) which comprises a tube body upper part (2), a connecting part (3) and a tube body lower part (4), the tube body upper part (2) is detachably screwed with the connecting part (3), the connecting part (3) is screwed with the tube body lower part (4), the upper end of the connecting part (3) is fixedly connected with a first filter screen (5), the lower end of the connecting part (3) is fixedly connected with a second filter screen (6), the lower end of the tube body upper part (2) and the lower end of the connecting part (3) are both connected with a first locking module (8) through a spring (7), the upper end of the connecting part (3) and the upper end of the tube body lower part (4) are both fixedly connected with a second locking module (9), the lower end of the first locking module (8) and the upper end of the second locking module (9) are provided with limiting teeth (10) which are matched with each other.
2. The integrated filtration centrifugation separation device according to claim 1, wherein, The first filter screen (5) is provided in a cylindrical shape, the bottom of the first filter screen (5) is fixedly connected with the upper end of the connecting part (3), and the upper end of the first filter screen (5) is fixedly connected with a cover plate (11).
3. The integrated filtration centrifugation separation device of claim 2, wherein, The second filter screen (6) is provided in a circular shape, the second filter screen (6) is fixedly connected with the bottom of the connecting part (3), and a secondary filtering cavity (13) is formed between the first filter screen (5) and the second filter screen (6).
4. The integrated filtration centrifugation separation device of claim 2, wherein, The cover plate (11) is provided in a circular truncated cone shape with the upper end being raised.
5. The integrated filtration centrifugation separation device of claim 2, wherein, The cover plate (11) is fixedly connected with the upper end of the connecting part (3) through a plurality of supporting rods (12), and one side of the supporting rod (12) is attached to the inner side of the first filter screen (5).
6. The integrated filtration centrifugation separation device of claim 1, wherein, The outer surfaces of the sides of the tube body upper part (2) and the tube body lower part (4) close to the connecting part (3) are all provided with anti-skid lines (14), and the outer surface of the connecting part (3) is also provided with anti-skid lines (14).
7. The integrated filtration centrifugation separation device of claim 1, wherein, Sealing rings (15) are arranged at the connecting positions of the connecting part (3) and the tube body upper part (2) and the tube body lower part (4).
8. The integrated filtration centrifugation separation device of claim 1, wherein, The first locking module (8) comprises a first slot (16), a centrifugal ring (17), a guide block (18) and a guide slot (19), the second locking module (9) comprises a second slot (20), the first slot (16) is arranged at the lower end of the connecting part (3), the guide slot (19) is arranged on the inner wall of the first slot (16), the upper end of the centrifugal ring (17) is fixedly connected with the upper end of the first slot (16) through the spring (7), and the centrifugal ring (17) is slidably connected with the guide slot (19) through the guide block (18).
9. The integrated filtration centrifugation separation device of claim 8, wherein, The limiting teeth (10) comprise first ratchet teeth (21) and second ratchet teeth (22), the first ratchet teeth (21) are fixedly connected with the centrifugal ring (17), and the second ratchet teeth (22) are fixedly connected with the bottom of the second slot (20).
10. The integrated filtration centrifugation separation device of claim 9, wherein, A counterweight metal wire (23) is arranged in the middle of the centrifugal ring (17), and the counterweight metal wire (23) is provided in a ring structure with uniform thickness.